分级除尘效率

蒋健棠一词多意教程(6):grade

grade,给...打分数。 Don't you need to grade papers?你不是要去为考卷打分数吗？（这里的papers也可能是学生交来的作业） grade,分数。也指年级。（但一般指初中范围内的年级） He always gets good grades,他总是能考到高的分数。 What grade are you in?你读多少年

发表于:2018-12-04 / 阅读(116) / 评论(0)

蒋健棠一词多意

初中英语人教版一年级上册06

[00:13.79]Hi,Ann!What class are you in? [00:18.86]I'm in Class 3,Grade 1.Are you in class 3,too? [00:26.23]Yes,I am. [00:30.07]What class are you in? [00:40.72]I'm in Class 3,Grade 1. [00:48.77]Are you in class 3,too?Yes,I am. [01:44.75]Say these num

发表于:2018-12-10 / 阅读(90) / 评论(0)

初中英语人教版初一

睡眠好记忆好

Studying for a big exam at school or a presentation at work, but don't forget to get a good night's sleep. Brain scientists report more evidence this week that sleep can improve your memory. Researche

发表于:2018-12-11 / 阅读(86) / 评论(0)

万花筒2006年

快乐英语第三册 UNIT1-3

00:21.68]Unit 1 Welcome to our school. [00:27.35]Lesson 1 1.Learn to Say [00:33.52]Hello,boys and girls. Nice to see you again. [00:39.47]Nice to see you,too. [00:43.62]This is our new teacher,Mr Hill. Welcome. [00:50.39]2.Look,Listen and Say [00:58.

发表于:2018-12-13 / 阅读(131) / 评论(0)

快乐英语第三册

美国英语听力80篇3 Lesson41

[00:07.21]NASA's Stardust spacecraft has successfully deployed a device that will collect extremely small particles in space. [00:16.95]The particles are called dust. [00:19.72]They form a stream of particles that flows through our solar system. [00:

发表于:2018-12-26 / 阅读(54) / 评论(0)

美国英语听力80篇

六级词汇与结构练习（23）

坚持不懈，直到成功。我们每天的奋斗就像对参天大树的一次砍击，头几刀可能了无痕迹。每一击看似微不足道，然而，累积起来，巨树终会倒下。这恰

发表于:2019-01-03 / 阅读(161) / 评论(0)

四六级词汇与结构练习

64.It's a Puzzlement

The fine-furniture store where I work has been in business since the 1920s.Recently I received a call from a woman who wanted to replace some chairs from a dining set purchased from us in the 1930s.I

发表于:2019-01-03 / 阅读(97) / 评论(0)

英汉幽默故事选读

4. What Grade

Kristin,, my 17-year-old niece, had just gotten her driver's license and offered to take her mom's car to the gas station. She pulled up to the full-service pumps, and the attendant asked,

发表于:2019-01-03 / 阅读(123) / 评论(0)

英汉幽默故事选读

Straight into 5th grade

A first grade teacher was having trouble with one ofher students. One day she asked Johnny what his problem was. He replied, I'm too smart for the first grade, my sister is in the third grade and I'm smarter than her . The teacher took him to the pri

发表于:2019-01-07 / 阅读(122) / 评论(0)

趣味英语

VOA慢速英语-Education Report - Debating Eighth-Grade Graduations

Are the ceremonies a good way to recognize success in school? Or do they waste money and send the wrong message? Transcript of radio broadcast: 02 July 2008 This is the VOA Special English Education Report. In the United States, middle school is the

发表于:2019-01-11 / 阅读(128) / 评论(0)

VOA慢速英语2008年（七）月

VOA慢速英语 Agriculture Report - Improving 'Feed Efficiency' in Cattle

Agriculture Report - Improving 'Feed Efficiency' in Cattle 农业报道 - 提高牛的饲养效率 From VOA Learning English, this is the Agriculture Report in Special English. 这里是美国之音慢速英语农业报道。 Animal feed is the bigge

发表于:2019-01-12 / 阅读(111) / 评论(0)

2012年VOA慢速英语(十一)月

美国国家公共电台 NPR Movie 'Eighth Grade' Dares You To Relive Those Teenage Years

MICHEL MARTIN, HOST: OK, if I say eighth grade, what comes to mind - Drama? awkwardness? Please let me think about anything but that? A new film out this week dares you to walk those halls once again, but this time in the age of Instagram. The film i

发表于:2019-01-17 / 阅读(98) / 评论(0)

2018年NPR美国国家公共电台7月

TED演讲:我们为什么要排气(3)

At the same time, methanogens can use hydrogen and carbon dioxide produced by other bacteria to generate methane, 同时，产甲烷菌可以使用其他细菌产出的氢和二氧化碳以生成甲烷， which can reduce the total volume of gas by u

发表于:2019-01-17 / 阅读(103) / 评论(0)

TED演讲教育篇

TED演讲：每天一秒钟(4)

I was on a three-month road trip this summer. 今年夏天我度了三个月的假。 It was something that I've been dreaming about doing my whole life, 这是我一生梦寐以求的东西， just driving around the U.S. and Canada and just figurin

发表于:2019-01-18 / 阅读(90) / 评论(0)

TED演讲教育篇

what grade

What Grade Kristin,, my 17-year-old niece, had just gotten her driver's license and offered to take her mom's car to the gas station. She pulled up to the full-service pumps, and the attendant asked, What grade, miss?Eleventh! Kristin replied. Notes:

发表于:2019-01-25 / 阅读(151) / 评论(0)

趣味英语

VOA常速英语2007年-Fuel Efficiency, Gadgets Mark Los Angeles Auto

By Mike O'Sullivan Los Angeles 16 November 2007 Auto makers who are showcasing their latest models at the Los Angeles auto show are expanding product lines in the hope of staying competitive in a changing market. Mike O'Sullivan reports, carmakers fr

发表于:2019-02-06 / 阅读(129) / 评论(0)

VOA常速英语2007年（十一月）

Fitch confirms Brazil's investment grade

RIO DE JANEIRO, June 28 (Xinhua) -- World-renowned（世界知名的） credit rating agency Fitch Ratings announced on Monday the confirmation of Brazil's investment grade. Fitch stated（阐述） that Brazil's Issuer Default Rating will be maintai

发表于:2019-02-07 / 阅读(137) / 评论(0)

英语新闻

托福满分作文范文：关于工作时间

Some people prefer to get up early in the morning to start the day's work; while other people like to get up later in the day to work until late at night. Which option do you prefer? I would choose to get up early in the morning. This view is based o

发表于:2019-02-19 / 阅读(58) / 评论(0)

托福英语

音乐咖啡厅:Sheppard - A Grade Playa

歌词： Song：A Grade Playa Artist：Sheppard Now that your gone and never coming back I feel as though my heart will never stay intact I was just an apple that you chewed till your through the core You've got a lot of charm and yeah it sucked me

发表于:2019-02-21 / 阅读(137) / 评论(0)

音乐咖啡厅

经济学人243:节能以人为本 Back to basics

Back to basics 节能以人为本 Energy efficiency is not very flashy. That may be a selling point 能源增效并不那么高高在上，也许它还是个卖点。 Hope those are energy-saving bulbs 希望大家都使节能灯泡 WHEN Richard Sanc

发表于:2019-02-24 / 阅读(148) / 评论(0)

经济学人综合

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automatic block with coded track circuit

beat frequency amplifier